Question 9 (a) Give a short example showing polymorphism in use. This may be a diagram [4 marks] (b) Is the following statement true or false? Static methods can not be virtual [3 marks] or pseudo code. Thus, they are not polymorphic. (c) Give and describe the output of the following program. #include using namespace std; class A public virtual void f () cout 1; class B : public A I public: void f) cout